Phthia

00189, 1878 RA, 1878RA, I78R00A

All data for this body: [vot]

MPC data
Name (number) Phthia (189)
a 2.45007
e 0.03598
i / sin(i) 5.1757 / 0.09021
q 2.36191
Q 2.53824
ω 169.5205
Node 203.3429
m 283.5060
n 0.2570
Epoch 2460200.5
nobs 8912
nopp 60
Years observed 1880-2023
rms 0.39
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.450
ep 0.015
sin(ip) 0.098
Value Standard error
G 0.150
H 9.430
Mass 3.805e+16 6.859e+15
D 39.62 0.225
pV 0.221 0.0115
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4504 0.0150 0.0983 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.7200e+16 1.2700e+16 1.2700e+16 Baer 2008CeMDA.100...27B Deflec
3.8400e+16 8.1500e+15 8.1500e+15 Baer 2008DPS....40.5209B Deflec
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
32.38 1.485 1.485 Ryan&Woodward 2010AJ....140..933R IRAS-STM
37.66 2.000 2.000 Tedesco 2002AJ....123.1056T STM
38.49 0.320 0.320 Masiero 2014ApJ...791..121M NEATM
40.56 0.394 0.394 Masiero 2011ApJ...741...68M NEATM
40.85 3.218 3.218 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
42.47 0.670 0.670 Usui 2011PASJ...63.1117U NEATM
43.16 4.320 4.320 Ali-Lagoa 2018A&A...612A..85A NEATM
43.85 1.410 1.410 Masiero 2012ApJ...759L...8M NEATM
44.41 8.880 8.880 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.170 0.0310 0.0310 Masiero 2012ApJ...759L...8M NEATM
0.187 0.0750 0.0750 Ali-Lagoa 2018A&A...612A..85A NEATM
0.198 0.0400 0.0400 Ali-Lagoa 2018A&A...612A..85A NEATM
0.199 0.0244 0.0244 Masiero 2011ApJ...741...68M NEATM
0.208 0.0328 0.0328 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.220 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.231 0.0270 0.0270 Tedesco 2002AJ....123.1056T STM
0.317 0.0293 0.0293 Ryan&Woodward 2010AJ....140..933R IRAS-STM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.43 MPC-2023-12-04 MPC-2023-12-04 Phot